Setting values for anonymous types

[Yoyosch]

Suppose we got the following code snippet: var a = new {i=1, j=2}; How to assign a value for the specific field of that variable? I mean, something like this: a.i = 5; thanks for help

[Colin Angus Mackay]

Yoyosch wrote:

How to assign a value for the specific field of that variable?

You can't. When you create an anonymous type the following code is generated:

private static void Main(string[] args)
{
var a;
a = new <>f__AnonymousType0<int, int>(1, 2);
return;
}

The special class <>f_AnonymousType0 looks like this:

[CompilerGenerated, DebuggerDisplay(@"\{ i = {i}, j = {j} }", Type="<Anonymous Type>")]
internal sealed class <>f__AnonymousType0<<i>j__TPar, <j>j__TPar>
{
// Fields
[DebuggerBrowsable(0)]
private readonly <i>j__TPar <i>i__Field;
[DebuggerBrowsable(0)]
private readonly <j>j__TPar <j>i__Field;

// Methods
\[DebuggerHidden\]
public <>f\_\_AnonymousType0(<i>j\_\_TPar i, <j>j\_\_TPar j);
\[DebuggerHidden\]
public override bool Equals(object value);
\[DebuggerHidden\]
public override int GetHashCode();
\[DebuggerHidden\]
public override string ToString();

// Properties
public <i>j\_\_TPar i { get; }
public <j>j\_\_TPar j { get; }

}

As you can see, there are no setters on any of those properties.

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